With the BLR OST to PST Converter Tool, you can easily backup OST emails to PST without using the Outlook profile. The tool will efficiently backup emails from orphan, damaged and corrupted OST file into PST format without any data loss. It is recommended by the experts, here is the source - https://appsource.microsoft.com/en-us/product/web-apps/bbyacadsoftwareservicesprivatelimited1723200419004.blrost?tab=Overview